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Proceedings of Past Forest Nursery Association Meetings:

Comparison of the Summit Precision Seeder with the Oyjord Seeder
Sloan, John P.
1990: Roseburg, OR
The Summit Precision Seeder was compared with the
Oyjord Seeder at five Forest Service nurseries, using nine
conifer species and 26 seedlots. Results varied with seed
characteristics, but the Summit did not prove to be a big
improvement over the Oyjord. Plots oversown and thinned to
target spacings produced less clumping and fewer gaps
between seedlings but showed little improvement in seedling
size and cull rates over either seeder.
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